11959842042 has 24 divisors (see below), whose sum is σ = 25932868416. Its totient is φ = 3983555976.

The previous prime is 11959842017. The next prime is 11959842043. The reversal of 11959842042 is 24024895911.

It is a happy number.

11959842042 is a `hidden beast` number, since 1 + 19 + 598 + 4 + 2 + 0 + 42 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11959842043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230658 + ... + 277709.

It is an arithmetic number, because the mean of its divisors is an integer number (1080536184).

Almost surely, 2^11959842042 is an apocalyptic number.

11959842042 is an abundant number, since it is smaller than the sum of its proper divisors (13973026374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11959842042 is a wasteful number, since it uses less digits than its factorization.

11959842042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509682 (or 509679 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 11959842042 in words is "eleven billion, nine hundred fifty-nine million, eight hundred forty-two thousand, forty-two".